Answer:
y=-5/4x+5
Explanation:
So you have to try and get it to y=mx+b
b= where the line passes the y axis (0,5)
m= slope (change in y/change in x)
So we got our b which is 5, we need to find the slope now, you can do this by counting to the next point. So (4,0) goes up 5 and left 4, or -4, so with what we know we can set up y=mx+b. REMEMBER to make it negative since x is going in the negative direction if not then the whole answer is wrong!
Sorry it took so long! Hope this helps. Also thanks for the graph. :)
If you got any questions ill try my best to answer.